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Unit2SavingtheEarthTopic3Whatcanwedoathometoprotecttheenvironment?SectionADoyouknowhowthesekindsofpollutionaffectourenvironment?Whatshouldwedotoimpr
oveourenvironment?Whatdotheymean?Areyouagreenerperson?WhichdayistheWorldEnvironmentDay?Canyousortthegarbage?Wha
tcanwedoathometoprotecttheenvironment?Weshouldreducethewasteweproduce.Forexample,weshouldusebothsidesofpaperandreuseplasticbags.Listento1aaga
inandanswerthequestions.(1)Whoisworkingforanorganizationthatprotectstheenvironment?Jane.(2)What’shermainjob?Hermainjobistohelpspr
eadthemessageaboutprotectingtheenvironment.(3)Shouldweusebothsidesofpaper?Yes,weshould.(4)Whyistherecyclingusef
ul?Itcanprotecttheenvironment,anditcansavemoney,too.1bListento1aandcompletethetable.AninterviewwithJanewhereJanew
orksinan________________to______________________whatJaneisdoinghelping________________aboutprotectingtheenvironmentwhatwecandoathome____________
____weproducewhatstudentscandoatschoolcollect__________andsoftdrinkcansorganizationprotecttheenvironme
ntspreadthemessagereducethewastewastepaperKeywords1.workforanorganization2.helpspreadthemessage3.thethreeR’s---redu
ce,reuseandrecycle4.reducethewaste5.reuseplasticbags6.recycle7.encouragesb.todosth.8.sortRetellit1cRead1aandcompletet
hesentences.1.ThethreeR’s---______,______and_______---areimportant.2.Athome,wecan,forexample,useboth______ofpaperandreuse_____bags.3.Atschool,
studentsareencouragedto_____wastepaperand______________becauserecyclingcanprotectthe____________and_______money.4.Thenwe_______them______theycanber
ecycled.reducereuserecyclesidesplasticcollectsoftdrinkcansenvironmentsavesortsothat•(1)Weshoulduseplasticbagsasfewaspossible.•(2)Weshou
ldthrowthegarbageintheriver.•(3)Weshouldreducethewasteweproduce.•(4)Weshouldusebothsidesofpaper.•(5)Weshouldthrowtheplasticbagsratherthanreuseth
em.Youcannodorshakethehead!Noddingtheheadmeansagreement.Shakingtheheadmeansdisagreement.v.点头n.同意•(1)Younodyourheadandi
tmeansagreement.•(2)Hurryup,oryou’llmissthetrain.•(3)Waterisimportantbutsomepeopledon’tsaveit.•(4)Somepeopleprotectanimalswhil
eotherskillanimals.并列句连词or,and,but和while的用法①表示并列关系,用and…②表转折,用but,while…③表选择,用or…2Combinethesentenceswitho
r,and,butorwhile,makingsomechangesifnecessary.•1.Noiseisakindofpollution.It’sharmfultoourhearing.Noiseisakindofpollutionandit’shar
mfultoourhearing.•2.Workhard.Youwillfailtheexam.Workhard,oryouwillfailtheexam.•3.Noddingtheheadmeansagreement.Shaki
ngtheheadmeansdisagreement.Noddingtheheadmeansagreementwhile/butshakingtheheadmeansdisagreement.•4.Hurryup.Youwillmis
sthebus.Hurryup,oryouwillmissthebus.•5.Hehasfailedseveraltimes.Henevergivesup.Hehasfailedseveraltimes,but
henevergivesup.放弃3aReadthetableandwritethecorrectletterundereachpicture.Thensortthegarbagebasedonyourownknow
ledge.papercupsglassbottlescansplasticbagsnewspapers3aReadthetableandwritethecorrectletterundereachpicture.Thensortthegarb
agebasedonyourownknowledge.TypeofgarbageRecycledReusedReducedplasticbagspapercupscansnewspapersglassbottles√√√√√3bListentot
heconversationandcheckyouranswersin3a.Wow!We’vegotsomuchgarbage!Softdrinkcans,lunchboxes,plasticbott
les,batteries,wastepaper,paperbagsandcups,…4SupposeyouwillhaveaClean-upDay.Workingroupsandfindoutthegarbage.Thensortthembasedon3aandtalkaboutthem.A:I
thinklunchboxesshouldbereused.B:Whataboutwastepaper?A:Ithink…Welearn:1.Somewords:nod,agreement2.Somephrases:giveup3.Somesente
nces:(1)Weshouldreducethewasteweproduce.(2)Recyclingcanprotecttheenvironment,anditcansavemoney,too.We
can:1.Usethecompoundsentenceswithor,and,butandwhile.2.Talkaboutenvironmentalprotection.•Read1a.•Memorizetheusefulexpressionsandkeysentence
swhichwelearntoday.•FinishSectionAinyourworkbook.•PreviewSectionB.